2100-640(A) (2015 12)

Page 1 of 30

WALL MOUNTED PACKAGED AIR CONDITIONER

Models:

INSTALLATION INSTRUCTIONS

W18AA-AW24AA-AW24AA-BW24AA-CW24AA-DW24AA-FW30AA-AW30AA-BW30AA-CW30AA-DW30AA-FW36AA-A

W36AA-BW36AA-CW36AA-DW36AA-EW36AA-FW42AA-AW42AA-BW42AA-CW42AA-EW42AA-FW48AA-AW48AA-B

Bard Manufacturing Company, Inc. Bryan, Ohio 43506

www.bardhvac.com

Manual: 2100-640ASupersedes: 2100-640 Date: 12-17-15

W18LA-AW24LA-AW24LA-BW24LA-FW30LA-AW30LA-BW30LA-CW30LA-FW36LA-AW36LA-BW36LA-CW36LA-FW42LA-AW42LA-B

W42LA-CW42LA-FW48LA-AW48LA-BW48LA-CW48LA-FW60LA-AW60LA-BW60LA-CW60LA-FW72LA-AW72LA-BW72LA-CW72LA-F

W48AA-CW48AA-EW48AA-FW60AA-AW60AA-BW60AA-CW60AA-EW60AA-FW72AA-AW72AA-BW72AA-CW72AA-F

W30AADAW30AADBW30AADCW36AADAW36AADBW36AADCW42AADAW42AADBW42AADCW48AADAW48AADBW48AADCW60AADAW60AADBW60AADC

Manual 2100-640A Page 2 of 30

CONTENTS

FiguresFigure 1 Fresh Air Damper .................................. 5Figure 2 Unit Dimensions ................................... 7Figure 3A Mounting Instructions – W18, 24 ............ 8Figure 3B Mounting Instructions – W30, 36 ................9Figure 3C Mounting Instructions – W42, 48 .............. 10Figure 3D Mounting Instructions – W60, 72 .............. 11Figure 4 Electric Heat Clearance ....................... 12Figure 5 Wall Mounting Instructions .................. 13Figure 6 Wall Mounting Instructions .................. 13Figure 7 Common Wall Mounting Installations .... 14Figure 8 Programmable Thermostat Connections ....................................... 17Figure 9 Non-Programmable Thermostat Connections ....................................... 18Figure 10 Fan Blade Setting ............................... 22

TablesTable 1 Wall Thermostats ................................ 16Table 2 Humidity Controls ............................... 16Table 3 CO2 Controller .................................... 16Table 4 Thermostat Wire Size ........................... 16Table 5 Fan Blade Dimensions ......................... 22Table 6 Cooling Pressure ................................. 23Table 7 Electrical Specifications W**A ............. 24Table 8 Electrical Specifications W**L .............. 25Table 9 Recommended Airflow ......................... 26Table 10 Indoor Blower Performance .................. 26Table 11 Maximum ESP Electric Heat Only ......... 26Table 12 Electric Heat ...................................... 27Table 13 Vent and Control Options ..................... 28Table 14A Optional Accessories – Right Hand ....... 29Table 14B Optional Accessories – Left Hand .............30

Getting Other Information and Publications .... 3

Wall Mount General Information ......................... 4Air Conditioner Wall Mount Model Nomenclature ..... 4Shipping Damage ................................................. 4General ............................................................... 4Duct Work ........................................................... 5Filters ................................................................. 5Fresh Air Intake ................................................... 5Condensate Drain ................................................ 5

Installation ............................................................... 6Wall Mounting Information .................................... 6Mounting the Unit ................................................ 6Clearances Required ............................................. 6Minimum Clearances ............................................ 6Wiring – Main Power ........................................... 15Wiring – Low Voltage Wiring ................................. 15

Start Up ................................................................... 19General ............................................................. 19Topping Off System Charge ................................. 19Safety Practices ................................................. 19Important Installer Note ...................................... 19High Pressure Switch .......................................... 20Three Phase Scroll Compressor ............................ 20Phase Monitor .................................................... 20Condenser Fan Operation .................................... 20Service Hints ..................................................... 20Sequence of Operation ........................................ 20Vent Connection Plug .......................................... 20Compressor Control Module ................................. 21Pressure Service Ports ........................................ 21

Service ..................................................................... 22Fan Blade Setting Dimensions ............................. 22R-410A Refrigerant Charge ................................. 22Removal of Fan Shroud ....................................... 22


GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help when installing the furnace. They can usually be found at the local library or purchased directly from the publisher. Be sure to consult the current edition of each standard.

National Electrical Code ......................ANSI/NFPA 70

Standard for the Installation ..............ANSI/NFPA 90A of Air Conditioning and Ventilating Systems

Standard for Warm Air .......................ANSI/NFPA 90B Heating and Air Conditioning Systems

Load Calculation for ......................... ACCA Manual J Residential Winter and Summer Air Conditioning

Duct Design for Residential ............... ACCA Manual D Winter and Summer Air Conditioning and Equipment Selection

For more information, contact these publishers:

ACCA Air Conditioning Contractors of America 1712 New Hampshire Ave. N.W. Washington, DC 20009 Telephone: (202) 483-9370 Fax: (202) 234-4721

ANSI American National Standards Institute 11 West Street, 13th Floor New York, NY 10036 Telephone: (212) 642-4900 Fax: (212) 302-1286

ASHRAE American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc. 1791 Tullie Circle, N.E. Atlanta, GA 30329-2305 Telephone: (404) 636-8400 Fax: (404) 321-5478

NFPA National Fire Protection Association Batterymarch Park P.O. Box 9101 Quincy, MA 02269-9901 Telephone: (800) 344-3555 Fax: (617) 984-7057


WALL MOUNT GENERAL INFORMATION

AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE

NOTE: Vent options X, B and M are without exhaust capability. May require separate field-supplied barometric relief in building.

SHIPPING DAMAGEUpon receipt of equipment, the carton should be checked for external signs of shipping damage. If damage is found, the receiving party must contact the last carrier immediately, preferably in writing, requesting inspection by the carrier’s agent.

GENERALThe equipment covered in this manual is to be installed by trained, experienced service and installation technicians.

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.

Children should be supervised to ensure that they do not play with the appliance.

The refrigerant system is completely assembled and charged. All internal wiring is complete.

The unit is designed for use with or without duct work. Flanges are provided for attaching the supply and return ducts.

These instructions explain the recommended method to install the air cooled self-contained unit and the electrical wiring connections to the unit.

These instructions and any instructions packaged with any separate equipment required to make up the entire air conditioning system should be carefully read before beginning the installation. Note particularly “Starting Procedure” and any tags and/or labels attached to the equipment.

While these instructions are intended as a general recommended guide, they do not supersede any national and/or local codes in any way. Authorities having jurisdiction should be consulted before the installation is made. See Page 3 for information on codes and standards.

Size of unit for a proposed installation should be based on heat loss calculation made according to methods of Air Conditioning Contractors of America (ACCA). The air duct should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating Systems of Other Than Residence Type, NFPA No. 90A, and Residence Type Warm Air Heating and Air Conditioning Systems, NFPA No. 90B. Where local regulations are at a variance with instructions, installer should adhere to local codes.

CONTROL MODULES(See Spec. Sheet S3502)

COIL OPTIONSX – Standard1 – Phenolic Coated Evaporator2 – Phenolic Coated Condenser3 – Phenolic Coated Evaporator and Condenser

Insert “D” for dehumidification with hot gas reheat. Reference Form 7960-736 for complete details.

SPECIALTY PRODUCTS (Non-Standard)

W 42 A A – A 10 X X X X X A

MODEL SERIES

REVISION

KW

A – Right HandL – Left Hand

FILTER OPTIONSX – 1" Throwaway (Standard)W – 1" WashableP – 2" Pleated

OUTLET OPTIONSX – Front (Standard)T – Top Outlet (W30A, W36A only)

COLOR OPTIONSX – Beige (Standard)1 – White4 – Buckeye Gray5 – Desert Brown

6 – Dark BronzeA – AluminumS – Stainless Steel

18 – 1½ Ton24 – 2 Ton

30 – 2½ Ton36 – 3 Ton

CAPACITY 42 – 3½ Ton

48 – 4 Ton60 – 5 Ton72 – 6 Ton

VENTILATION OPTIONSX – Barometric Fresh Air Damper (Standard)B – Blank-off PlateM – Motorized Fresh Air DamperV – Commercial Ventilator - Motorized with Exhaust

R – Energy Recovery Ventilator - Motorized with Exhaust (See Spec. Sheet S3397)Y – Full Flow Economizer - DB Temp.Z – Full Flow Economizer - Enthalpy

A – 230/208/60/1B – 230/208/60/3C – 460/60/3D – 240/220/50/1

VOLTS & PHASE E – 240/220/50/3 or 220/200/50/3F – 415/380/50/3


DUCT WORKAll duct work, supply and return, must be properly sized for the design airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly insulated in order to both conserve energy and prevent condensation or moisture damage.

Refer to Maximum ESP of operation Electric Heat Table 11 on page 26.

Design the duct work according to methods given by the Air Conditioning Contractors of America (ACCA). When duct runs through unheated spaces, it should be insulated with a minimum of one inch of insulation. Use insulation with a vapor barrier on the outside of the insulation. Flexible joints should be used to connect the duct work to the equipment in order to keep the noise transmission to a minimum.

Models W18 – W24 are approved for 0" clearance to the supply duct. For model series W30, W36, W42, W48, W60 and W72, a 1/4" clearance to combustible material for the first 3' of duct attached to the outlet air frame is required. See wall mounting instructions on page 6 and Figures 3 and 4 (pages 8 – 12) for further details.

Ducts through the walls must be insulated and all joints taped or sealed to prevent air or moisture entering the wall cavity.

Some installations may not require any return air duct. A metallic return air grille is required with installations not requiring a return air duct. The spacing between louvers on the grille shall not be larger than 5/8".

Any grille that meets with 5/8" louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG2 through RG5 or RFG2 through RFG5 be installed when no return duct is used. Contact distributor or factory for ordering information. If using a return air filter grille, filters must be of sufficient size to allow a maximum velocity of 400 fpm.

NOTE: If no return air duct is used, applicable installation codes may limit this cabinet to installation only in a single story structure.

FILTERSA 1" throwaway filter is standard with each unit. The filter slides into position making it easy to service. This filter can be serviced from the outside by removing the filter access panel. A 1" washable filter and 2" pleated filter are also available as optional accessories. The internal filter brackets are adjustable to accommodate the 2" filter by bending two tabs down on each side of the filter support bracket.

FRESH AIR INTAKEAll units are built with fresh air inlet slots punched in the service door.

If the unit is equipped with a fresh air damper assembly, the assembly is shipped already attached to the unit. The damper blade is locked in the closed position. To allow the damper to operate, the maximum and minimum blade position stops must be installed (see Figure 1).

All capacity, efficiency and cost of operation information is based upon the fresh air blank-off plate in place and is recommended for maximum energy efficiency.

The blank-off plate is available upon request from the factory and is installed in place of the fresh air damper shipped with each unit.

CONDENSATE DRAIN

A plastic drain hose extends from the drain pan at the top of the unit down to the unit base. There are openings in the unit base for the drain hose to pass through. In the event the drain hose is connected to a drain system of some type, it must be an open or vented type system to assure proper drainage.

FIGURE 1Fresh Air Damper


Clearances Required for Service Access and Adequate Condenser Airflow

MODELS LEFTSIDE

RIGHTSIDE

DISCHARGE SIDE

W18A, W24A, W30A, W36A 15" 20" 10'

W18L, W24L, W30L, W36L 20" 15" 10'

W42A, W48A, W60A, W72A 20" 20" 10'

W42L, W48L, W60L, W72L 20" 20" 10'

Minimum Clearances Required toCombustible Materials

MODELS SUPPLY AIR DUCTFIRST 3'

CABINET

W18A, LW24A, L

0" 0"

W30A, LW36A, L

1/4" 0"

W42A, LW48A, L W60A, LW72A, L

1/4" 0"NOTE: For side-by-side installation of two W**A models there must be 20" between units. This can be reduced to 15" by using a W**L model (left side compressor and controls) for the left unit and W**A (right side compressor and controls) for right unit.

See Specifications Sheet S3502.

INSTALLATION

WARNINGFailure to provide the 1/4" clearance between the supply duct and a combustible surface for the first 3' of duct can result in fire causing damage, injury or death.

WALL MOUNTING INFORMATION1. Two holes for the supply and return air openings

must be cut through the wall as shown in Figures Figures 3A – D (pages 8 – 11).

2. On wood frame walls, the wall construction must be strong and rigid enough to carry the weight of the unit without transmitting any unit vibration.

3. Concrete block and brick walls must be thoroughly inspected to insure that they are capable of carrying the weight of the installed unit.

MOUNTING THE UNIT1. These units are secured by wall mounting brackets

which secure the unit to the outside wall surface at both sides. A bottom mounting bracket, attached to skid for shipping, is provided for ease of installation, but is not required.

2. The supply air duct flange and the first 3' of supply air duct require a minimum of 1/4" clearance to combustible material for model series W30, W36, W42, W48, W60 and W72. However, it is generally recommended that a 1" clearance is used for ease of installation and maintaining the required clearance to combustible material. See Figures 3A – D for details on opening sizes.

3. Locate and mark lag bolt locations and bottom mounting bracket location (see Figures 3A – D).

4. Mount bottom mounting bracket.

5. Hook top rain flashing, attached to front-right of supply flange for shipping, under back bend of top.

6. Position unit in opening and secure with 5/16 lag bolts; use 7/8" diameter flat washers on the lag bolts.

7. Secure rain flashing to wall and caulk across entire length of top (see Figures 3A – D).

8. For additional mounting rigidity, the return air and supply air frames or collars can be drilled and screwed or welded to the structural wall itself (depending upon wall construction). Be sure to observe required clearance if combustible wall.

9. On side-by-side installations, maintain a minimum of 20" clearance on right side to allow access to control panel and heat strips and proper airflow to the outdoor coil. Additional clearance may be required to meet local or national codes.


Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)MODEL

WIDTH(W)

DEPTH(D)

HEIGHT(H)

SUPPLY RETURN

A B C B E F G I J K L M N O P Q R S T

W18AAW24AA 33.300 17.125 74.563 7.88 19.88 11.88 19.88 35.00 10.88 29.75 20.56 30.75 32.06 33.25 31.00 2.63 34.13 26.06 10.55 4.19 12.00 9.00

W30AAW36AA 38.200 17.125 74.563 7.88 27.88 13.88 27.88 40.00 10.88 29.75 17.93 30.75 32.75 33.25 31.00 2.75 39.13 26.75 9.14 4.19 12.00 9.00

W42AAW48AA 42.075 22.432 84.875 9.88 29.88 15.88 29.88 43.88 13.56 31.66 30.00 32.68 26.94 34.69 32.43 3.37 43.00 23.88 10.00 1.44 16.00 1.88

W60AAW72AA 42.075 22.432 93.000 9.88 29.88 15.88 29.88 43.88 13.56 37.00 30.00 40.81 35.06 42.81 40.56 3.37 43.00 31.00 10.00 1.44 16.00 10.00

3"

Shipping

ElectricalEntrances

Supply Air OpeningSide WallMounting

(Built In)

OptionalReturn Air Opening

Location

Brackets

Top RainFlashing

Bottom InstallationBracketBack View

S

S

PM

O

Q

R

S

S

S

.44

E

T

B

N

L

Disconnect

Rain HoodBuilt In

(Lockable)

Low Voltage

Access Panel

Entrance

Heater

Electrical

Entrance

Access

Cond.

Inlet

Panel

Air

ElectricalHigh Voltage

DrainSide View

4° Pitch

C. Breaker/

Hood for CRV andECON modelsonly

1.250

2.13

A

I

D

J

C H

K7.00

MIS-3736

ElectricHeat

Ventilation Air

Front View

Air OutletCondenser

Filter Access Panel

Standardflush ventdoor for non-ERV/CRVEcon.models

1

F

G

W

5.88

FIGURE 2

All dimensions are in inches. Dimensional drawings are not to scale.

W**ARIGHTUNIT

W**LLEFTUNIT

1.250I

A

C

K

2.13

H

J

NQ

PM

L

OE

.44 W

3"F

G

R

S

S

S

S

S

T

D

B

5.88

Hood for CRV andECON modelsonly

7.000

1

BottomInstallation

(Built In)

Supply Air Opening

MIS-3737

Air Air Outlet

Bracket

Front ViewDrainElectricalEntrance

Entrances

Inlet

Side ViewHigh Voltage

Cond.

Low VoltageElectrical

Back View

Condenser

OptionalElectrical

Entrance

BracketsMountingSide Wall

LocationShippingFlashing

Return Air Opening

Standard flush

Disconnect

ElectricHeat

Top Rain

HeaterAccess

Filter Access Panel

vent door for

Panel

Econ. modelsnon-ERV/CRV

(Lockable)Access Panel

Ventilation Air

C. Breaker/

Built InRain Hood4° Pitch


FIG

UR

E 3

AW

18

A, W

18

L, W

24

A, W

24

LM

ount

ing

Inst

ruct

ions

12"

12"

12"

12"

12"

20"

20"

1"3"

4" Typ.

8" 201 2"

12"

1"

31 8"4" Ty

p.

5"

7 8"

313 16"

2"2"

71 16

"1 16

"7

CONT

ROLS

AND

HEAT

ERAC

CESS

NOTE

S:

TOP

TOP

FLAS

HING

AT T

IME

OF IN

STAL

LATI

ON.

OPEN

ING

MIS-

3157

ENTI

RE LE

NGTH

OF T

OP.

RETU

RNAI

R

DUCT

Wall

Open

ingan

dHole

Loca

tionV

iewRi

ghtS

ideVi

ew

OFCA

ULKI

NGAL

ONG

PANE

L

FOAM

AIR

SEAL

WAL

LSTR

UCTU

RE

WAL

L

HEAT

ERAC

CESS

RAIN

FLA

SHIN

G SILIC

ONE

CAUL

KING

BEPL

ACED

BEHI

ND

ISON

OPPO

SITE

(LEF

T)SI

DE.

THE

SIDE

MOUN

TING

FLA

NGES

AND

UNDE

R

SEAL

WIT

HBE

AD

IT IS

RECO

MMEN

DED

THAT

ABE

ADOF

W**A

UNIT

SHOW

N,W

**LUN

IT

SUPP

LYAI

R

SUPP

LIED

Retur

n Ope

ning

Supp

ly Op

ening


FIG

UR

E 3

BW

30

A, W

30

L, W

36

A, W

36

LM

ount

ing

Inst

ruct

ions

2

C

D

C

12"

12"

12"

12"

12"

B

28"

14"

411 16

" 4

11 16"

4" Typ.

"1 8

A

7 8"7 8"

4" Typ.

37 8"

E

91 16

"

47 8"

RETU

RN A

IR SILIC

ONE

CAUL

KING

BE

PLAC

ED B

EHIN

D

SUPP

LIED

NOTE

S:

ENTI

RE LE

NGTH

OF

TOP.

THE

SIDE

MOU

NTIN

G FL

ANGE

S AN

D UN

DER

1/4" C

LEAR

ANCE

ON

ALL

DUCT

OF C

AULK

ING

ALON

G

PANE

L

FOAM

AIR

SEA

L

WAL

L STR

UCTU

RE

FOUR

SID

ES O

F SU

PPLY

AIR

DUCT

IS R

EQUI

RED

FROM

COM

BUST

ABLE

MATE

RIAL

S

RAIN

FLA

SHIN

G

TOP

SUPP

LY A

IR

OPEN

ING

Righ

t Side

View

HEAT

ER A

CCES

S

TOP

FLAS

HING

AT

TIME

OF

INST

ALLA

TION

.

SEAL

WIT

H BE

AD

IT IS

REC

OMME

NDED

THA

T A

BEAD

OF

WAL

L

Wall

Ope

ning

and

Hole

Loca

tion

View

17 5/

8

4 5/8

16 7/

8

8 3/8

A

9 7/8

29 7/

8

Retu

rn O

penin

g

4 7/16

3 11/1

61/4

" MIN

. CLE

ARAN

CE F

ROM

28 3/

8

ED

5 3/8

B

COMB

USTI

BLE

MATE

RIAL

S

C

RECO

MMEN

DED

1" C

LEAR

ANCE

FRO

MRE

QUIR

ED D

IMEN

SION

S TO

MAI

NTAI

N

COMB

USTI

BLE

MATE

RIAL

S

REQU

IRED

DIM

ENSI

ONS

TO M

AINT

AIN Su

pply

Open

ing

W**A

UNI

T SH

OWN,

W**L

UNI

TCO

NTRO

LS A

ND H

EATE

R AC

CESS

IS O

N OP

POSI

TE (L

EFT)

SID

E.

MIS-

3820


FIG

UR

E 3

CW

42

A, W

42

L, W

48

A, W

48

LM

ount

ing

Inst

ruct

ions

D

16"

16"

16"

16"

16"

17 8"61 2"

61 2"21 8"7 8"

1"3"

4" Typ.

4" Typ.

61 2"30

"

E 16"

AC

C

31 8"

B

Wall

Open

ingan

dHole

Loca

tionV

iew

RETU

RN A

IR

1

REQU

IRED

DIM

ENSI

ONS

TOM

AINT

AIN

1/4"

MIN

.CLE

ARAN

CEFR

OMCO

MBU

STIB

LEM

ATER

IALS

REQU

IRED

DIM

ENSI

ONS

TOM

AINT

AIN

29

DUCT

COM

BUST

IBLE

MAT

ERIA

LS

AB

CD

E

301/

210

1/2

61/

41

1/4

293/

4

3212

51/

22

NOTE

S:WAL

L ST

RUCT

URE

1

SUPP

LY A

IR

IT IS

REC

OMM

ENDE

DTH

AT A

BEA

D OF

OPEN

ING

Righ

tSide

ViewRA

INFL

ASHI

NG

SILI

CONE

CAUL

KING

BE

PLAC

ED B

EHIN

D

RECO

MM

ENDE

D1"

CLEA

RANC

EFR

OM

THE

SIDE

MOU

NTIN

GFL

ANGE

S AN

DUN

DER

TOP

FLAS

HING

AT

TIM

E OF

INST

ALLA

TION

.

TOP.

PANE

LHE

ATER

ACC

ESS

FOUR

SID

ES O

F SU

PPLY

AIR

DUCT

IS R

EQUI

RED

FROM

COM

BUST

ABLE

WAL

L1/

4"CL

EARA

NCE

ON A

LL

MAT

ERIA

LS

Supp

ly Op

ening

FOAM

AIR

SEA

L

SUPP

LIED

SEAL

WIT

H BE

ADOF

CAUL

KING

ALO

NGEN

TIRE

LEN

GTH

OF

TOP

1

Retur

n Ope

ning

MIS

-416

E

Dim

ensio

nis

21"o

n95

" tall

units

.

2

Dim

ensio

nis

10"o

nT4

8H1

& T6

0H1.

2

Dim

ensio

nis

6"on

T48H

1 &

T60H

1.3

3


FIG

UR

E 3

DW

60

A, W

60

L, W

72

A, W

72

LM

ount

ing

Inst

ruct

ions

D

16"

16"

16"

16"

16"

2"6

8" 5

8 9

7 "1"

3"

Typ.

1

4"

4" Typ.

61 2"30

"

E 16"

AC

C

"

7

83

B

" 871

1 2"6

11/

430

1/2

1/4"

CLEA

RANC

E ON

ALL

SUPP

LIED FO

AM A

IR S

EAL

A

Supp

ly Op

ening

SILI

CONE

CAUL

KING

BE

PLAC

ED B

EHIN

D

DUCT

FOUR

SID

ES O

F SU

PPLY

FROM

COM

BUST

ABLE

1/4"

MIN

.CLE

ARAN

CEFR

OMCO

MBU

STIB

LEM

ATER

IALS

REQU

IRED

DIM

ENSI

ONS

TOM

AINT

AIN

OPEN

ING

COM

BUST

IBLE

MAT

ERIA

LS

BD

E

PANE

L

AIR

DUCT

IS R

EQUI

RED

32

10 1

/2

Righ

tSide

ViewSU

PPLY

AIR

RECO

MM

ENDE

D1"

CLEA

RANC

EFR

OM

MIS

-378

9

RAIN

FLAS

HING

REQU

IRED

DIM

ENSI

ONS

TOM

AINT

AIN

12

TOP.

MAT

ERIA

LS

51/

2W

ALL

STRU

CTUR

E2

61/

4

29293/

4

IT IS

REC

OMM

ENDE

DTH

AT A

BEA

D OF

THE

SIDE

MOU

NTIN

GFL

ANGE

S AN

DUN

DER

WAL

L

C

Wall

Open

ingan

dHo

leLo

catio

nVi

ew

NOTE

S:

TOP

FLAS

HING

AT

TIM

E OF

INST

ALLA

TION

.

HEAT

ER A

CCES

S

RETU

RN A

IR

SEAL

WIT

H BE

ADOF

CAUL

KING

ALO

NGEN

TIRE

LEN

GTH

OF

TOP

Retu

rn O

penin

g


FIGURE 4Electric Heat Clearance

W30A, W30L, W36A, W36L, W42A, W42L, W48A, W48L, W60A, W60L, W72A, W72L

WARNINGA minimum of 1/4" clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3' of ducting.

It is important to insure that the 1/4" minimum spacing is maintained at all points.

Failure to do this could result in overheating the combustible material and may result in a fire causing damage, injury or death.

NOTE 1: SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4" CLEARANCE TO COMBUSTIBLE SURFACES.


FIGURE 5Wall Mounting Instructions

FIGURE 6Wall Mounting Instructions

DUCT

OPENINGRETURN AIR

SUPPLY AIR

WOOD FRAME WALL INSTALLATION

OPENING

WALL BEFORE

MOUNT ON UNIT

OPENING

BEFORE INSTALLATION

BOTTOM MOUNTING

CONCRETE BLOCK WALL INSTALLATION

BRACKET. MOUNT ON

OPENING

WOOD OR STEEL SIDING

OPENING

INSTALLING UNIT.

RETURN AIR

WALL STRUCTURE

RETURN AIR

SUPPLY AIR

FACTORY SUPPLIEDRAIN FLASHING.

SUPPLY AIR

MIS-548 ASIDE VIEW

I

A

C

K

E + 1.000B

1.000

SUPPLY DUCT

OVER FRAME

INTERIOR FINISHED WALL

ALL AROUND DUCT

FRAMING MATERIAL

EXTERIOR FINISH WALL

OPENING

FOR ACTUAL DIMENSIONS.

2 x 4'S, 2 x 6'S &/ORSTRUCTURAL STEEL

ATTACH TO TOP

1.000" CLEARANCE

1.000" CLEARANCE

PLATE OF WALL

C

SEE UNIT DIMENSIONS, FIGURE 2,

OPENING

RETURN DUCT

2 x 6

ATTACH TO BOTTOM

OVER FRAME

PLATE OF WALL

L

THIS STRUCTURAL MEMBERLOCATED TO MATCH STUDSPACING FOR REST OF WALL.A SECOND MEMBER MAY BEREQUIRED FOR SOME WALLS.

MIS-549 B

ALL AROUND DUCT

SEE FIGURES 3A THROUGH 3D – MOUNTING INSTRUCTIONS


FIGURE 7Common Wall Mounting Installations

RAFTERS

DUCTED SUPPLY

RAFTERSRAFTERS

RAFTERS

FALSE WALL

OUTSIDEWALL

NO DUCT

SUPPLY AIR GRILLE

RETURN AT UNIT

WALL

RAISED FLOORRETURN AIR

LOWERED

GRILLERETURN AIR

WALL

CEILING SURFACE

SPACERETURN AIR

RETURN AIR GRILLE

WALLOUTSIDE

SUPPLY DUCT MAYBE LOCATED IN AN ATTIC

SUPPLY AIR DUCTSUPPLY AIR DUCT

SUPPLY AIR DUCT

RETURN AIROPENING W/ GRILLE

OUTSIDE

W/ GRILLE

FALSE WALL INSTALLATION

CEILING

RAINFLASHING

RAINFLASHING

SUPPLY DUCT MAYBE LOCATED IN AN ATTICOR BELOW CEILING RAFTERS AS SHOWN

FINISHED CEILING

WALL

CLOSET WALL SURFACE

OPENING W/ GRILLE

SLEEVE

OR BELOW CEILING RAFTERS AS SHOWN

SUPPLY AIR DUCT

OUTSIDE

WALL SLEEVE

SUPPLY DUCT MAY BE LOCATED IN AN ATTICOR BELOW CEILING RAFTERS AS SHOWN

FINISHED CEILING SURFACE

RAINFLASHING

FINISHED CEILING SURFACE

RAINFLASHING

CLOSET INSTALLATION

FINISHED

MIS-550 C

FREE AIR FLOW

RETURN AIR


WIRING – MAIN POWERRefer to the unit rating plate for wire sizing information and maximum fuse or circuit breaker size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring used must be sized to carry that amount of current. Depending on the installed KW of electric heat, there may be two field power circuits required. If this is the case, the unit serial plate will so indicate. All models are suitable only for connection with copper wire. Each unit and/or wiring diagram will be marked “Use Copper Conductors Only”. These instructions must be adhered to. Refer to the National Electrical Code (NEC) for complete current carrying capacity data on the various insulation grades of wiring material. All wiring must conform to NEC and all local codes.

The electrical data lists fuse and wire sizes (75° C copper) for all models including the most commonly used heater sizes. Also shown are the number of field power circuits required for the various models with heaters.

The unit rating plate lists a “Maximum Time Delay Relay Fuse” or circuit breaker that is to be used with the equipment. The correct size must be used for proper circuit protection and also to assure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor.

The disconnect access door on this unit may be locked to prevent unauthorized access to the disconnect. To convert for the locking capability, bend the tab located in the bottom left-hand corner of the disconnect opening under the disconnect access panel straight out. This tab will now line up with the slot in the door. When shut, a padlock may be placed through the hole in the tab preventing entry.

See “Start Up” section for important information on three phase scroll compressor start ups.

See Tables 7 and 8 on pages 24 and 25 for electrical specifications.

WIRING – LOW VOLTAGE WIRING All 230/208V 1 phase and 3 phase equipment have dual primary voltage transformers. All equipment leaves the factory wired on 240V tap. For 208V operation, reconnect from 240V to 208V tap. The acceptable operating voltage range for the 240 and 208V taps are:

TAP RANGE 240 253 – 216 208 220 – 187

NOTE: The voltage should be measured at the field power connection point in the unit and while the unit is operating at full load (maximum amperage operating condition).

For low voltage wiring, an 18 gauge copper, color-coded cable is recommended. See Table 4 on page 16 for more information.

Low Voltage Connections

These units use a 24-volt AC low voltage circuit. The “RT” terminal is the 24V transformer output, and the “R” terminal is the 24VAC hot terminal for the operation of the equipment. “RT” and “R” are connected with brass jumper bar which can be removed and “RT” and “R” connected to external NC (normally closed) contact such as a fire/smoke detector that will cause immediate shutdown of the equipment upon activation.

“C” terminal is grounded.“G” terminal is the fan input.“Y1” terminal is the 1st Stage input for cooling.“Y2” terminal is the 2nd Stage compressor input for cooling (if equipped with an economizer).“B/W1” terminal is the 1st stage electric heat.“W2” terminal is the 2nd stage heat (if equipped).“A” terminal is the ventilation input. This terminal energizes any factory-installed ventilation option and indoor blower.“D” terminal is the dehumidification input. If installed, this terminal energizes any factory installed dehumidification option.

For units equipped with an alarm relay:

"L/1" terminal is the normally closed contact on the relay."2" terminal is the normally open contact on the relay."3" terminal is the common contact on the relay.

LOW VOLTAGE CONNECTIONS FOR DDC CONTROL

Standard Units Units w/Economizers

Fan Only Energize G Energize G

1st Stage Cooling Mode

Energize Y1, G Energize Y1, G

2nd Stage Cooling Mode

Energize Y1, Y2, G

1st Stage Heating Energize B/W1 Energize B/W1

2nd Stage Heating(if employed) Energize B/W1, W2 Energize B/W1, W2

Ventilation Energize A Energize A

Dehumidification(if employed) Energize D Energize D


Part Number Predominate Features

8403-057(TH3110D1040)

1 stage Cool, 1 stage Heat; Electronic Non-Programmable; Auto or Manual changeover

8403-058(TH5220D1151)

2 stage Cool, 2 stage Heat; Electronic Non-Programmable; HP or Conventional (Default: HP); Auto or Manual changeover

8403-059(TH5220D1219/U)

2 stage Cool, 2 stage Heat; Electronic Non-Programmable; HP or Conventional (Default: AC); Auto or Manual changeover

8403-060(1120-445)

3 stage Cool; 3 stage Heat; Electronic Programmable/Non-Programmable; HP or Conventional; Auto or Manual changeover; Dehumidification Output

CS9B-THO3 Stage Heat, 3 Stage Cool; Programmable/Non-Programmable; HP or Conventional;Auto or Manual Changeover; Humidity Sensor w/ dehumidification; Motion Sensor w/Intelligent Learning Control; BACnet-compatible

CS9B-THOC3 Stage Heat, 3 Stage Cool, Programmable/Non-Programmable; HP or Conventional;Auto or Manual Changeover; Humidity Sensor w/ dehumidification; CO2 Sensor; Motion Sensor w/Intelligent Learning Control; BACnet-compatible

CS9BE-THO3 Stage Heat, 3 Stage Cool, Programmable/Non-Programmable; HP or Conventional;Auto or Manual Changeover; Humidity Sensor w/ dehumidification; Motion Sensor w/Intelligent Learning Control; BACnet-compatible; Ethernet-compatible

CS9BE-THOC3 Stage Heat, 3 Stage Cool, Programmable/Non-Programmable; HP or Conventional; Auto or Manual Changeover; Humidity Sensor w/dehumidification; CO2 Sensor; Motion Sensor w/Intelligent Learning Control; BACnet-compatible; Ethernet-compatible

TABLE 1Wall Thermostats

TABLE 2Humidity Controls


8403-038(H600A1014)

SPDT switching, pilot duty 50VA @ 24VHumidity range 20-80% RH

8403-047(H200-10-21-10)

Electronic dehumidstat SPST closes-on-riseHumidity range 10-90% with adjustable stops

TABLE 3CO2 Controller


8403-067

Normally Open SPST relay closes-on-rise 24V dual wave length sensor. Default setting 950ppm, adjustable to 0-2000ppmDefault off setting 1000ppm, adjustable to0-200 ppm can be calibrated

TABLE 4Thermostat Wire Size

TransformerVA FLA Wire Gauge

Maximum Distance In Feet

55 2.3

20 gauge18 gauge16 gauge14 gauge12 gauge

4560

100160250


Thermostat W1/E A YO/DLO/BY2Y1R GC W2Bard #8403-060

6 1012119 412-PinVent Plug

23 5 7

CO2 OUT

Optional CO2 ControllerBard Part #8403-067

654321

TEMP-OUT

24VAC

W3/8 76532RUnit LowVoltageTerm. Strip

W2C GRT Y1 Y2 B/W1 L/1 DA 4

Do not add these wires if setting up for modulating control. See note 7.9

8

7

Do not connect "A" from thermostat if optional CO2 controller is used

0-10 VDC modulating C02 control signal for modulating ventilation control (optional forECON only - see vent instruction manuals)6

Relay Provided with Completestat5

Change model configuration from heat pump to heat/cool. Must be configured to programmableand fan set to be programmed fan for the "A" output to function during scheduled occupiedperiods. Must be configured for multi-stage for Y1 output to be active 1st stage cooling. Fordehumidification, must be configured for "No Economizer" for YO/D to be active for humiditycontrol.4

Factory installed jumper. Remove jumper and connectto N.C fire alarm circuit if emergency shutdown required.

3

Wire not needed below 15KW.2Wire required for dehumidification models only.

1

Install jumper for 1 stage electric heat on units with less than 15KW

W1/E

SC SCSCCompletestatModel #CS9B-THO orModel #CS9BE-THO

W2COM G24V Y1 Y2 O/B L DA GND

8

4

ALL VENT OPTIONS PLUG IN HERE

Yellow

Blue2

White

3

Orange3

5

Red

If not equipped with a ventilation option to plug in, a jumper plug must be installed.

MIS-3738 A

1

74

4

6

9

2

FIGURE 8Programmable Thermostat Connections


FIGURE 9Non-Programmable Thermostat Connections

6 1012119 412-PinVent Plug

23 5 7

CO2 OUT

Optional CO2 ControllerBard Part #8403-067

654321

TEMP-OUT

24VAC

W3/8 76532RUnit LowVoltageTerm. Strip

W2C GRT Y1 Y2 B/W1 L/1 DA 4

6 Do not add these wires if setting up for modulating control. See note 7.

8

Jumper needs added.9

For 8403-058, change "system type", set up Function 1, From 5 (2 Heat/ 1 Cool heat Pump)to 6 (2 Heat / 2 Cool Conventional). For 8403-059, No change required.

2B Install Jumper for 1 stage electric heat on units with less than 15KW.

0-10 VDC Modulating CO2 control signal for modulating ventilation control(Optional for CRV & ECON Only) - See vent installation manual.7

For vent operation, add jumper if optional CO2 controller is not used.Vent will run while blower is energized.

Demand ventilation control only useful for CRV's.For different CRV control options, see CRV installation manual.

5

4

Factory installed jumper. Remove jumper and connectto N.C fire alarm circuit if emergency shutdown required.

3

Wire not needed below 15KW.2A

Wire required for dehumidification models only.

1

Add-on demand

4

ventilation control

W

MIS-3739

ALL VENT OPTIONS PLUG IN HERE

5

If not equipped with a ventilation option to plug in, a jumper plug must be installed.

8403-047

Units With Dehumidification

(TH522OD1151)

1 Stage Cool

3

WRc CR G Y Y2 W24356

Mechanical Humidistat8403-038

Electronic Humidistat

O

8403-058

2 Stage Heat2 Stage Cool

(TH522OD1219/U)8403-059

(TH311OD1040) R CRc Y8403-0571 Stage Heat

2A

G

1

B

72B

6

9

8


START UP

THESE UNITS REQUIRE R-410A REFRIGERANT AND POLYOL ESTER OIL.

GENERAL1. Use separate service equipment to avoid cross

contamination of oil and refrigerants.

2. Use recovery equipment rated for R-410A refrigerant.

3. Use manifold gauges rated for R-410A (800 psi/250 psi low).

4. R-410A is a binary blend of HFC-32 and HFC-125.

5. R-410A is nearly azeotropic—similar to R-22 and R-12. Although nearly azeotropic, charge with liquid refrigerant.

6. R-410A operates at 40-70% higher pressure than R-22 and systems designed for R-22 cannot withstand this higher pressure.

7. R-410A has an ozone depletion potential of zero, but must be reclaimed due to its global warming potential.

8. R-410A compressors use Polyol Ester oil.

9. Polyol Ester oil is hygroscopic; it will rapidly absorb moisture and strongly hold this moisture in the oil.

10. A liquid line dryer must be used—even a deep vacuum will not separate moisture from the oil.

11. Limit atmospheric exposure to 15 minutes.

12. If compressor removal is necessary, always plug compressor immediately after removal. Purge with small amount of nitrogen when inserting plugs.

TOPPING OFF SYSTEM CHARGEIf a leak has occurred in the system, Bard Manufacturing recommends reclaiming, evacuating (see criteria above) and charging to the nameplate charge. If done correctly, topping off the system charge can be done without problems.

With R-410A, there are no significant changes in the refrigerant composition during multiple leaks and recharges. R-410A refrigerant is close to being an azeotropic blend (it behaves like a pure compound or single component refrigerant). The remaining refrigerant charge, in the system, may be used after leaks have occurred and then “top-off” the charge by utilizing the pressure charts on the inner control panel cover as a guideline.

REMEMBER: When adding R-410A refrigerant, it must come out of the charging cylinder/tank as a liquid to avoid any fractionation, and to ensure optimal system performance. Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction.

SAFETY PRACTICES1. Never mix R-410A with other refrigerants.

2. Use gloves and safety glasses. Polyol Ester oils can be irritating to the skin, and liquid refrigerant will freeze the skin.

3. Never use air and R-410A to leak check; the mixture may become flammable.

4. Do not inhale R-410A—the vapor attacks the nervous system, creating dizziness, loss of coordination and slurred speech. Cardiac irregularities, unconsciousness and ultimate death can result from breathing this concentration.

5. Do not burn R-410A. This decomposition produces hazardous vapors. Evacuate the area if exposed.

6. Use only cylinders rated DOT4BA/4BW 400.

7. Never fill cylinders over 80% of total capacity.

8. Store cylinders in a cool area, out of direct sunlight.

9. Never heat cylinders above 125°F.

10. Never trap liquid R-410A in manifold sets, gauge lines or cylinders. R-410A expands significantly at warmer temperatures. Once a cylinder or line is full of liquid, any further rise in temperature will cause it to burst.

IMPORTANT INSTALLER NOTEFor improved start up performance, wash the indoor coil with a dishwashing detergent.

WARNINGFailure to conform to these practices could lead to damage, injury or death.


HIGH PRESSURE SWITCHAll W**A/W**L wall mounted air conditioner series models are supplied with a remote reset for the high and low pressure switch. If tripped, this pressure switch may be reset by turning the thermostat off then back on again.

THREE PHASE SCROLL COMPRESSOR START UP INFORMATIONScroll compressors, like several other types of compressors, will only compress in one rotational direction. Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction.

However, three phase compressors will rotate in either direction depending upon phasing of the power. Since there is a 50-50 chance of connecting power in such a way as to cause rotation in the reverse direction, verification of proper rotation must be made. Verification of proper rotation direction is made by observing that suction pressure drops and discharge pressure rises when the compressor is energized. Reverse rotation also results in an elevated sound level over that with correct rotation, as well as substantially reduced current draw compared to tabulated values.

Verification of proper rotation must be made at the time the equipment is put into service. If improper rotation is corrected at this time, there will be no negative impact on the durability of the compressor. However, reverse operation for over 1 hour may have a negative impact on the bearing due to oil pump out.

NOTE: If compressor is allowed to run in reverse rotation for an extended period of time, the compressor’s internal protector will trip.

All three phase compressors are wired identically internally. As a result, once the correct phasing is determined for a specific system or installation, connecting properly phased power leads to the same Fusite terminal should maintain proper rotation direction.

The direction of rotation of the compressor may be changed by reversing any two line connections to the unit.

PHASE MONITORAll units with three phase scroll compressors are equipped with a three phase line monitor to prevent compressor damage due to phase reversal.

The phase monitor in this unit is equipped with two LEDs. If the Y signal is present at the phase monitor and phases are correct, the green LED will light.

If phases are reversed, the red fault LED will be lit and compressor operation is inhibited.

If a fault condition occurs, reverse two of the supply leads to the unit. Do not reverse any of the unit factory wires as damage may occur.

CONDENSER FAN OPERATIONNOTE: Certain models may be equipped with a

low ambient control (LAC), and if so, the condenser fan motor will have a delayed start until system refrigerant operating pressure builds up. After starting, the fan motor may or may not cycle depending upon ambient conditions. This is normal operation.

The condenser fan motor on 230/208 volt, one and three phase, 60 HZ units is a two-speed motor that comes factory wired on high speed for peak performance. If ambient conditions permit, it can be reconnected to low speed (red wire) for lower sound level. See wiring diagram. (This applies to W42, W48, W60 and W72 models only.)

50 HZ models must have fan wired on low speed. These models are factory wired on low speed.

SERVICE HINTS1. Caution owner/operator to maintain clean air

filters at all times and also not to needlessly close off supply and return air registers. This reduces airflow through the system, which shortens equipment service life as well as increasing operating costs.

2. Check all power fuses or circuit breakers to be sure they are the correct rating.

3. Periodic cleaning of the outdoor coil to permit full and unrestricted airflow circulation is essential.

SEQUENCE OF OPERATIONCOOLING – Circuit R-Y1 makes at thermostat pulling in compressor contactor, starting the compressor and outdoor motor. (See NOTE above under Condenser Fan Operation concerning models equipped with low ambient control.) The G (indoor motor) circuit is automatically completed by the thermostat on any call for cooling operation or can be energized by manual fan switch on subbase for constant air circulation. On a call for heating, circuit R-W1 makes at the thermostat pulling in heat contactor for the strip heat and blower operation. On a call for second stage heat, R-W2 makes bringing on second heat contactor, if so equipped.

VENT CONNECTION PLUGAll units are equipped with a vent connection plug in the side of the control panel for the different ventilation packages to plug in to. If the compressor will not start and there is no "Y1" at the compressor control module,


first check to make sure that either the optional vent is plugged into the vent connection plug or the supplied jumper plug is in place. The unit will not operate without anything plugged in. This plug is located on the side of the control panel behind the front vent door (behind the filter access door). If the unit is supplied with a factory-installed vent package, it will be plugged in but the jumper plug will also be tethered next to the connection for troubleshooting purposes if necessary.

COMPRESSOR CONTROL MODULEThe compressor control module is standard on all models covered by this manual. The compressor control module is an anti-short cycle/lockout timer with high and low pressure switch monitoring and alarm relay output.

Adjustable Delay-on-Make and Delay-on-Break Timer

On initial power up or anytime power is interrupted to the unit, the delay-on-make period begins, which will be 2 minutes plus 10% of the delay-on-break setting. When the delay-on-make is complete and the high pressure switch and low pressure switch are closed, the compressor contactor is energized. Upon shutdown, the delay-on-break timer starts and prevents restart until the delay-on-break and delay-on-make periods have expired.

During routine operation of the unit with no power interruptions, the compressor will operate on demand with no delay.

High Pressure Switch and Lockout Sequence

If the high pressure switch opens, the compressor contactor will de-energize immediately. The lockout timer will go into a soft lockout and stay in soft lockout until the high pressure switch closes and the delay-on-break time has expired. If the high pressure switch opens again in this same operating cycle, the unit will go into manual lockout condition and the alarm relay circuit will energize. Recycling the wall thermostat resets the manual lockout.

Low Pressure Switch, Bypass and Lockout Sequence

If the low pressure switch opens for more than 120 seconds, the compressor contactor will de-energize and go into a soft lockout. Regardless the state of the low pressure switch, the contactor will re-energize after the delay-on-make time delay has expired. If the low pressure switch remains open, or opens again for longer than 120 seconds, the unit will go into manual lockout condition and the alarm relay circuit will energize. Recycling the wall thermostat resets the manual lockout.

Alarm Relay Output

Alarm terminal is output connection for applications where alarm relay is employed. This terminal is powered whenever the compressor is locked out due to HPC or LPC sequences as described.

NOTE: Both high and low pressure switch controls are inherently automatic reset devices. The high pressure switch and low pressure switch cut out and cut in settings are fixed by specific air conditioner unit model. The lockout features, both soft and manual, are a function of the compressor control module.

Adjustments

Adjustable Delay-on-Make and Delay-on-Break Timer

The potentiometer is used to select delay-on-break time from 30 seconds to 5 minutes. Delay-on-make (DOM) timing on power up and after power interruptions is equal to 2 minutes plus 10% of delay-on-break (DOB) setting:

0.5 minute (30 seconds) DOB = 123 second DOM1.0 minute (60 seconds) DOB = 126 second DOM2.0 minute (120 seconds) DOB = 132 second DOM3.0 minute (180 seconds) DOB = 138 second DOM4.0 minute (240 seconds) DOB = 144 second DOM5.0 minute (300 seconds) DOB = 150 second DOM

During routine operation of the unit with no power interruptions, the compressor will operate on demand with no delay.

Typical Settings for Dual Unit Installation:

Unit 1: DOB set at 2 minutes and DOM is 132 seconds

Unit 2: DOB set at 4 minutes and DOM is 144 seconds

PRESSURE SERVICE PORTSHigh and low pressure service ports are installed on all units so that the system operating pressures can be observed. A pressure table covering all models can be found on page 23. It is imperative to match the correct pressure table to the unit by model number.

This unit employs high-flow Coremax valves instead of the typical Shrader type valves.

WARNING! Do NOT use a Schrader valve core removal tool with these valves. Use of such a tool could result in eye injuries or refrigerant burns!

To change a Coremax valve without first removing the refrigerant, a special tool is required which can be obtained at www.fastestinc.com/en/SCCA07H. See the replacement parts manual for replacement core part numbers.


SERVICE

FIGURE 10Fan Blade Setting

TABLE 5Fan Blade Dimension

R-410A REFRIGERANT CHARGEThis unit was charged at the factory with the quantity of refrigerant listed on the serial plate. AHRI capacity and efficiency ratings were determined by testing with this refrigerant charge quantity.

The following pressure table shows nominal pressures for the units. Since many installation specific situations can affect the pressure readings, this information should only be used by certified technicians as a guide for evaluating proper system performance. They shall not be used to adjust charge. If charge is in doubt, reclaim, evacuate and recharge the unit to the serial plate charge.

REMOVAL OF FAN SHROUD1. Disconnect all power to the unit.

2. Remove the screws holding both grilles, one on each side of unit, and remove grilles.

3. Remove nine screws holding fan shroud to condenser and bottom.

4. Unwire condenser fan motor.

5. Slide complete motor, fan blade and shroud assembly out the left side of the unit.

6. Service motor/fan as needed.

7. Reverse steps to reinstall.

"A"

AIRFLOW

MIS-1724

Model DimensionA

W18AA/W18LAW24AA/W24LA

1.00"

W30AA/W30LAW36AA/W36LA

1.25"

W42AA/W42LAW48AA/W48LAW60AA/W60LAW72AA/W72LA

1.75"

FAN BLADE SETTING DIMENSIONSShown in Figure 10 is the correct fan blade setting for proper air delivery across the outdoor coil. Refer to Table 5 for unit specific dimension.

Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions below be checked and blade adjusted in or out on the motor shaft accordingly.


TABLE 6 Cooling Pressure

Air Temperature Entering Outdoor Coil °F

Low side pressure ± 4 PSIG High side pressure ± 10 PSIG

Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge being in the system, the charge should be removed and system evacuated and recharged to serial plate charge weight.

NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check condenser fan wiring. See “Condenser Fan Operation”.

Model Return Air Temp (DB/WB) Pressure 75 80 85 90 95 100 105 110 115 120 125

W18A/L

75/62Low SideHigh Side

121293

123312

126332

128353

131376

134400

136425

137452

140480

142510

144540


129300

132320

135340

137362

140386

143410

145436

147464

150492

152523

154554


134311

137331

140352

142375

145400

148424

150451

152480

155509

157541

159573

W24A/L


123314

124334

126355

128377

129401

131425

133451

135479

137507

139536

141567


132322

133343

135364

137387

138411

140436

142463

144491

146520

149550

151582


137333

138355

140377

142401

143425

145451

147479

149508

151538

154569

156602

W30A/L


118312

120333

122355

124378

126403

128428

131454

133483

135511

137540

138570


126320

128342

131364

133388

135413

137439

140466

142495

144524

146554

148585


130331

132354

136377

138402

140427

142454

145482

147512

149542

151573

153605

W36A/L


117323

120346

122370

124394

127419

129446

131473

134500

136528

137558

138587


125331

128355

130379

133404

136430

138457

140485

143513

145542

147572

148602


129343

132367

135392

138418

141445

143473

145502

148531

150561

152592

153623

W42A/L


123323

125346

128371

130395

132421

135447

137474

138501

140528

142558

144587


132331

134355

137380

139405

141432

144458

146486

148514

150542

152572

154602


137343

139367

142393

144419

146447

149474

151503

153532

155561

157592

159623

W48A/L


120330

122353

125377

127402

130428

132454

134482

136510

137540

139570

141601


128338

131362

134387

136412

139439

141466

143494

145523

147554

149585

151616


132350

136375

139401

141426

144454

146482

148511

150541

152573

154605

156638

W60A/L


127344

129362

131380

134401

136421

137444

140467

142492

145518

148545

151573


136353

138371

140390

143411

145432

147455

150479

152505

155531

158559

161588


141365

143384

145404

148425

150447

152471

155496

157523

160550

164579

167609

W72A/L


117332

119353

121376

122402

124427

126454

128483

130512

132542

134574

136607


125340

127362

129386

131412

133438

135466

137495

139525

141556

143589

145623


129352

131375

134400

136426

138453

140482

142512

144543

146575

148610

150645


TABLE 7

Maximum size of the time delay fuse or circuit breaker for protection of field wiring conductors. Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes. These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for power conductor sizing.* Top outlet supply option is available only factory installed and only on the selected models.CAUTION: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to Note 8 of Table 310 regarding Ampacity

Adjustment Factors when more than three current carrying conductors are in a raceway.IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National

Electrical Code and all local codes.

Electrical Specifications – W**A Series

MODEL

Rated Volts

& Phase

No. Field Power

Circuits

Single Circuit Multiple Circuit

Minimum

Circuit Ampacity

Maximum External Fuse or

Ckt. Brkr.

Field Power Wire Size

Ground

Wire

Minimum Circuit

Ampacity

MaximumExternal Fuse or

Ckt. Breaker


Ground

Wire Size

Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C Ckt. A Ckt. B Ckt. C

W18AA-A00, A0ZA05A08A10

230/208-1

1111

16304656

20305060

121086

12101010

W24AA-A00, A0ZA04A05A08A10

230/208-1

11111

2125304656

3030305060

10101086

1010101010

W24AA-B00, B0ZB06

230/208-311

1522

2025

1210

1210

W24AA-C00, C0ZC06

460-311

911

1515

1414

1414

W30AA-A00*, A0Z*A05*A08

A10*A15

230/208-1

1111

1 or 2

2632475884

3535506090

88864

101010108 58 26 60 30 6 10 10 10

W30AA-B00*, B0Z*B06

B09*B15

230/208-3

1111

19243351

20253560

121086

12101010

W30AA-C00*, C0Z*C06

C09*C12C15

460-3

11111

912172126

1515202530

1414121010

1414121010

W36AA-A00*, A0Z*A05*A08

A10*A15

230/208-1

1111

1 or 2

2932475884

3535506090

88864

101010108 58 26 60 30 6 10 10 10

W36AA-B00*, B0Z*B06*B09*B15

230/208-3

1111

23243351

30303560

101086

10101010

W36AA-C00*, C0Z*C06*C09*C12C15

460-3

11111

1112172126

1515202530

1414121010

1414121010

W42AA-A00, A0ZA05A10A15A20

230/208-1

111

1 or 21 or 2

32325884110

50506090125

88642

10101086

5858

2652

6060

3060

66

106

1010

1010

W42AA-B00, B0ZB09B15B18

230/208-3

1111

25335160

35356060

8866

10101010

W42AA-C00, C0ZC09C15

460-3111

121726

152030

141210

141210

W48AA-A00, A0ZA05A10A15A20

230/208-1

111

1 or 21 or 2

34345884

110

50506090

125

88642

10101086

5858

2652

6060

3060

66

106

1010

1010

W48AA-B00, B0ZB09B15B18

230/208-3

1111

26335160

35356060

8866

10101010


460-3111

121726

152030

141210

141210

W60AA-A00, A0ZA05A10A15A20

230/208-1

111

1 or 21 or 2

38386086

112

60606090

125

88632

10101086

6060

2652

6060

3060

66

106

1010

1010

W60AA-B00, B0ZB09B15B18

230/208-3

1112

273553N/A

404060N/A

886

N/A

101010N/A 35 28 40 30 8 10 10 10


460-3111

141827

202030

121210

121210

W72AA-A00, A0ZA05A10A15A20

230/208-1

111

1 or 21 or 3

58586288

114

60607090

125

66632

1010886

585858

265252 52

606060

306060 60

666

1066 6

101010

101010 10

W72AA-B00, B0ZB09B15B18

230/208-3

1112

404055N/A

606060N/A

886

N/A

101010N/A 40 28 60 30 8 10 10 10


460-3111

181827

252530

101010

101010


TABLE 8

Maximum size of the time delay fuse or circuit breaker for protection of field wiring conductors. Based on 75°C copper wire. All wiring must conform to the National Electrical Code and all local codes. These “Minimum Circuit Ampacity” values are to be used for sizing the field power conductors. Refer to the National Electrical code (latest version), Article 310 for power conductor

sizing.

CAUTION: When more than one field power circuit is run through one conduit, the conductors must be derated. Pay special attention to Note 8 of Table 310 regarding Ampacity Adjustment Factors when more than three current carrying conductors are in a raceway.

IMPORTANT: While this electrical data is presented as a guide, it is important to electrically connect properly sized fuses and conductor wires in accordance with the National Electrical Code and all local codes.

Electrical Specifications – W**L Series

MODELRated Volts & Phase

No. Field Power

Circuits

Single Circuit Dual Circuit

Minimum

Circuit Ampacity

Maximum External

Fuse or Ckt. Brkr.

Field Power

Wire Size

Ground

Wire

Minimum Circuit

Ampacity

MaximumExternal Fuse or

Ckt. Breaker


Ground

Wire Size

Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B Ckt. A Ckt. B

W18LA-A00,A0ZA05A08A10

230/208-1

1111

16304656

20305060

121086

12101010

W24LA-A00, A0ZA05A08A10

230/208-1

1111

21304656

30305060

101086

10101010

W24LA-B00, B0ZB06

230/208-311

1522

2025

1210

1210

W24LA-C00, C0ZC06

460-311

911

1515

1414

1414

W30LA-A00, A0ZA05A08A10A15

230/208-1

1111

1 or 2

2632475884

3535506090

88864

101010108 58 26 60 30 6 10 10 10

W30LA-B00, B0ZB09B15

230/208-3111

193351

203560

1286

121010

W30LA-C00, C0ZC09C15

460-3111

91726

152030

141210

141210

W36LA-A00, A0ZA05A10A15

230/208-1

111

1 or 2

29325884

35356090

8864

1010108 58 26 60 30 6 10 10 10


230/208-3111

233351

303560

1086

101010


460-3111

111726

152030

141210

141210

W42LA-A00, A0ZA05A10A15

230/208-1

111

1 or 2

32325884

50506090

8864

1010108 58 26 60 30 6 10 10 10


230/208-3111

253351

353560

886

101010


460-3111

121726

152030

141210

141210

W48LA-A00, A0ZA05A10A15

230/208-1

111

1 or 2

34345884

50506090

8864

1010108 58 26 60 30 6 10 10 10


230/208-3111

263351

353560

886

101010


460-3111

121726

152030

141210

141210

W60LA-A00, A0ZA05A10A15

230/208-1

111

1 or 2

38386086

60606090

8863

1010108 60 26 60 30 6 10 10 10


230/208-3111

273553

404060

886

101010


460-3111

141827

202030

121210

121210

W72LA-A00, A0ZA05A10A15

230/208-1

111

1 or 2

58586288

60607090

6663

101088

5858

2652

6060

3060

66

106

1010

1010


230/208-3111

404055

606060

886

101010


460-3111

181827

252530

101010

101010


TABLE 9Recommended Airflow

TABLE 10Indoor Blower Performance

TABLE 11Maximum ESP of Operation

Electric Heat Only

Values shown are for units equipped with standard 1" throwaway filter or 1" washable filter.Derate ESP by .15 for 2" pleated filters.

ModelNominal Rated CFM *

Nominal Rated ESP *

Recommended Airflow Range

Factory Speed Connection

W18A, W18L 600 .35 550 - 725 Low

W24A, W24L 800 .30 700 - 950 Single

W30A, W30L 1000 .45 900 - 1200 High

W36A, W36L 1100 .30 1000 - 1300 High

W42A, W42L 1350 .40 1250 - 1600 Low

W48A, W48L 1550 .35 1450 - 1750 High

W60A, W60L 1800 .30 1700 - 2000 High

W72A, W72L 1900 .25 1800 - 2100 Medium

SpeedW18 W24 W30 W36 W42 W48 W60 W72

High Low Single High Low High Low High Low High Low High Low High Medium Low

ESP(Inch H20)

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

Dry Coil

Wet Coil

0.0 1000 985 720 720 1010 975 1445 1380 940 930 1400 1310 965 955 1980 1940 1800 1705 2000 1940 1750 1700 2105 2010 1540 1460 2255 2155 2075 2015 1995 1930

0.1 965 950 700 690 960 925 1385 1320 930 920 1340 1260 940 930 1905 1880 1700 1640 1910 1865 1675 1615 2045 1960 1480 1395 2185 2095 2010 1965 1950 1870

0.2 935 900 665 660 905 870 1305 1240 920 910 1265 1185 905 890 1820 1760 1615 1565 1820 1770 1600 1540 1970 1885 1400 1315 2115 2035 1960 1915 1885 1825

0.3 880 845 635 625 835 800 1220 1150 985 880 1180 1100 860 850 1735 1665 1530 1450 1720 1605 1500 1425 1895 1800 1300 1220 2050 1970 1915 1865 1835 1785

0.4 795 760 590 575 750 720 1125 1055 850 830 1080 1010 800 785 1615 1565 1425 1350 1575 1500 1375 1320 1800 1700 1220 1150 1985 1920 1860 1815 1780 1720

0.5 680 645 520 510 640 610 1020 950 785 750 970 895 705 680 1510 1380 1100 1000 1420 1190 1075 1030 1705 1605 1110 1070 1925 1855 1810 1765 1725 1615

Model W18A/L, W24A/L W30A/L, W36A/L W42A/L, W48A/L W60A/L, W72A/L

Outlet FRONT FRONT FRONT FRONT

Speed Single High Low High Low High Low

-A0Z-A04-A05-A08-A10-A15-A20

.50

.50

.50

.50

.30

.50

.50

.50

.40

.40

.50

.50

.50

.35

.35

.50

.50

.50

.50

.50

.50

.50

.50

.50

.45

.50

.50

.50

.50

.50

.50

.50

.50

.50

.40

-B0Z-B06-B09-B15-B18

.50

.40.50.50.50.35

.50

.40

.50

.30

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

-C0Z-C06-C09-C15

.50

.50.50.50.50.45

.50

.50

.40

.35

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

.50

* Rated CFM and ESP on factory speed connection.


TABLE 12Electric Heat

Models 240V-1 208V-1 240V-3 208V-3 460V-3KW Amps BTUH Amps BTUH Amps BTUH Amps BTUH Amps BTUH4 16.7 13650 14.4 10240

5 20.8 17065 18.1 12800

6 14.4 20500 12.5 15360 7.2 20500

8 33.3 27300 28.8 20475

9 21.7 30600 18.7 23030 10.8 30700

10 41.6 34130 36.2 25600

12 14.4 40950

15 62.5 51250 54.0 38400 36.2 51200 31.2 38400 18.0 51200

18 43.3 61430 37.5 46100

20 83.2 68260 72.1 51200


TABLE 13Vent and Control Options

W1

8, W

24

W3

0, W

36

W4

2, W

48

, W

60

, W

72

Part Number Description

CMA-14 ODT X X X

CMC-15 Start Kit (230V 1-Phase) X X X

CMA-31 DDC X X

CMA-30 DDC X

CMA-28 LAC X X X

BFAD-2 Barometric Fresh Air Damper - Standard X

BOP-2 Blank Off Plate X

WMFADP2 Motorized Fresh Air Damper X

WCRVPS2 Commercial Ventilator - Spring Return X

WECOPE2WECOPT2

Economizer - Bldg. Equipment, EnthalpyEconomizer - Bldg. Equipment, DB Temp.

XX

WERVPA2 Energy Recovery Ventilator - 230 Volt X

WERVPC2 Energy Recovery Ventilator - 460 Volt X





WECOPE3WECOPT3


XX







WECOPE5WECOPT5


XX




W1

8A

A-A

W2

4A

A-A

W2

4A

A-B

W2

4A

A-C

W3

0A

A-A

W3

0A

A-B

W3

0A

A-C

W3

6A

A-A

W3

6A

A-B

W3

6A

A-C

W4

2A

A-A

W4

2A

A-B

W4

2A

A-C

W4

8A

A-A

W4

8A

A-B

W4

8A

A-C

W6

0A

A-A

W6

0A

A-B

W6

0A

A-C

W7

2A

A-A

W7

2A

A-B

W7

2A

A-C

TABLE 14AOptional Accessories – Right Hand

EHW2TA-A05 X X

EHW2TA-A08 X X

EHW2TA-A10 X X

EHWA24-A04B X

EHW2TA-B06 X

EHWH24B-C06 X

EHW3TA-A05 X X

EHW3TA-A08 X X

EHW3TA-A10 X X

EHW3TA-A15 X X

EHW30A-B06 X

EHW3TA-B06 X

EHW3TA-B09 X X

EHW3TA-B15 X X

EHW3TA-C06 X X

EHW3TA-C09 X X

EHW3TA-C12 X X

EHW3TA-C15 X X

EHW4TA-A05 X X

EHWA05-A10B X X X

EHWA05-A15B X X X

EHWA05-A20B X X X

EHWA05-B09B X X

EHWA05-B15B X X X X

EHW5TA-B18 X

EHW4TA-B18 X X

EHW4TA-C09 X X X X

EHW4TA-C15 X X X X

EHW5TA-A05 X X

EHW60A-B09B X

EHW70A-B09B X

EHW6TA-B18 X

EHW72A-A10B X

EHW72A-A15B X

EHW72A-A20B X

WMCB-01B X

WMCB-02A X

WMCB-02B X

WMCB-03A X

WMCB-04B X

WMCB-05A X X

WMCB-05B X X

WMCB-06B X

WMCB-08A X X

WMCB-09A X X

WMPD-01C X X X X X X X

WMCB-08B X

Hea

ter

Kit

sC

ircu

it B

reak

er (

WM

CB

) an

d

Pul

l Dis

conn

ect

(WM

PD

)


TABLE 14BOptional Accessories – Left Hand

W1

8LA

-A

W2

4LA

-A

W2

4LA

-B

W3

0LA

-A

W3

0LA

-B

W3

0LA

-C

W3

6LA

-A

W3

6LA

-B

W3

6LA

-C

W4

2LA

-A

W4

2LA

-B

W4

2LA

-C

W4

8LA

-A

W4

8LA

-B

W4

8LA

-C

W6

0LA

-A

W6

0LA

-B

W6

0LA

-C

W7

2LA

-A

W7

2LA

-B

W7

2LA

-C

EHW2TA-A05L X X

EHW2TA-A08L X X

EHW2TA-A10L X X

EHW2TA-B06L X

EHW3TA-A05L X X

EHW3TA-A08L X

EHW3TA-A10L X X

EHW3TA-A15L X X

EHW3TA-B09L X X

EHW3TA-B15L X X

EHW3TA-C09L X X

EHW3TA-C15L X X

EHW4TA-A05L X X X

EHWA05-A10LB X X X

EHWA05-A15LB X X X

EHWA05-B09LB X X

EHWA05-B15LB X X X X

EHW4TA-C09L X X X X

EHW4TA-C15L X X X X

EHW6TA-A05L X

EHWA60-B09LB X

EHW70A-B09LB X

EHW72A-A10LB X

EHW72A-A15LB X

WMCB-01B X

WMCB-02A X

WMCB-02B X

WMCB-03A X

WMCB-04B X

WMCB-05A X X

WMCB-05B X X

WMCB-06B X

WMCB-08A X X

WMCB-09A X X

WMPD-01C X X X X X X

WMCB-09B X

Hea

ter

Kit

sCi

rcui

t Bre

aker

(W

MCB

) an

d

Pull

Disc

onne

ct (

WM

PD)

Documents

2100-640(A) (2015 12)